This question is incomplete, here´s the complete question.
Weakness in the Abbasid Empire was revealed when Tahir of Khurasan did which of the following?
A) Invaded Baghdad and killed the caliph
B) Declared the Umayyads to be the true caliphs
C) Became governor of Khurasan and ruled it independently of Baghdad
D) Founded the city of Cairo as a new trade center
Answer: Became governor of Khurasan and ruled it independently of Baghdad
Explanation:
When Tahir was appointed as the governor of Khurasan, a period of antagonistic relationships between the Tahirids and the Abbasids begun.
Tahir was determined to turn independent. Him dropping the al-Mamun’s name from the Khutbah and creating coins after his own name were all symbolic expressions of independence from Baghdad.
Answer:
plastic is the main constituent in the garbage patch found in North Pacific Ocean. It was estimated to be approximately 80 thousand tons or about 1.8 trillion pieces of plastic in the patch. A total of 1.8 trillion plastic pieces were estimated to be floating in the patch.
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B) a booming system of trade.
The economy if Greece was defined largely by the region's dependence on imported goods.
